13b- 12a swap

[dajedicc27]

i got a 84 rx7 and bought an 86 na 13b can i use the wiring out of an 84-5 13b or do i need to get the 86 wiring. (also have the ecu for the 86 also just forgot the wiring and went back for it and they crushed the car)

[TOOL]

The S4 13B is a 6 port. Get a 13B 6 port manifold and carb (Holley or IDA) or get an adaptor plate to fit the 12A carb and manifold. Get a set of 13B headers or modify your 12A ones. Fit the dizzy from the 12A to the 13B if it has a CAS.

Fire it up